Simplifying a life cycle assessment of a mobile phone

  • Åsa Moberg
  • Clara Borggren
  • Christine Ambell
  • Göran Finnveden
  • Fredrik Guldbrandsson
  • Anna Bondesson
  • Jens Malmodin
  • Pernilla Bergmark
INPUT-OUTPUT AND HYBRID LCA

DOI: 10.1007/s11367-014-0721-6

Cite this article as:
Moberg, Å., Borggren, C., Ambell, C. et al. Int J Life Cycle Assess (2014) 19: 979. doi:10.1007/s11367-014-0721-6

Abstract

Purpose

The possibilities for full life cycle assessment (LCA) of new Information and Communication Technology (ICT) products are often limited, so simplification approaches are needed. The aim of this paper is to investigate possible simplifications in LCA of a mobile phone and to use the results to discuss the possibilities of LCA simplifications for ICT products in a broader sense. Another aim is to identify processes and data that are sensitive to different methodological choices and assumptions related to the environmental impacts of a mobile phone.

Methods

Different approaches to a reference LCA of a mobile phone was tested: (1) excluding environmental impact categories, (2) excluding life cycle stages/processes, (3) using secondary process data from generic databases, (4) using input-output data and (5) using a simple linear relationship between mass and embodied emissions.

Results and discussion

It was not possible to identify one or a few impact categories representative of all others. If several impact categories would be excluded, information would be lost. A precautionary approach of not excluding impact categories is therefore recommended since impacts from the different life cycle stages vary between impact categories. Regarding use of secondary data for an ICT product similar to that studied here, we recommend prioritising collection of primary (specific) data on energy use during production and use, key component data (primarily integrated circuits) and process-specific data regarding raw material acquisition of specific metals (e.g. gold) and air transport. If secondary data are used for important processes, the scaling is crucial. The use of input-output data can be a considerable simplification and is probably best used to avoid data gaps when more specific data are lacking.

Conclusions

Further studies are needed to provide for simplified LCAs for ICT products. In particular, the end-of-life treatment stage need to be further addressed, as it could not be investigated here for all simplifications due to data gaps.

Keywords

Information and communication technology (ICT)Mobile phone, dataSimplificationSimplified LCA

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Åsa Moberg
    • 1
    • 2
  • Clara Borggren
    • 1
    • 2
  • Christine Ambell
    • 1
    • 2
    • 4
  • Göran Finnveden
    • 1
    • 2
  • Fredrik Guldbrandsson
    • 2
    • 3
    • 5
  • Anna Bondesson
    • 2
    • 3
  • Jens Malmodin
    • 2
    • 3
  • Pernilla Bergmark
    • 2
    • 3
  1. 1.Division of Environmental Strategies Research—fms, Department of Sustainable Development, Environmental Sciences and Engineering, School of Architecture and the Built EnvironmentKTH Royal Institute of TechnologyStockholmSweden
  2. 2.CESC—Centre for Sustainable CommunicationsKTH Royal Institute of TechnologyStockholmSweden
  3. 3.Ericsson AB, EMF Safety and Sustainability, Ericsson ResearchStockholmSweden
  4. 4.MyTomorrow ABVallentunaSweden
  5. 5.Frontwalker ABSundsvallSweden